How many electrons must be removed from a piece of metal to give it a positive charge of 1 × 10-7 C ?

Question

How many electrons must be removed from a piece of metal to give it a positive charge of 1 × 10-7 C ? (A) 6.25 × 10-11 (B) 6.25 × 10-12 (C) 6.25 × 1011 (D) 6.25 × 1013

Tardigrade Admin · Accepted Answer

Correct answer is (b) 6.25 × 10-12

Q. How many electrons must be removed from a piece of metal to give it a positive charge of $1 \times 1 0^{- 7} C$ ?

$6.25 \times 1 0^{- 11}$

$6.25 \times 1 0^{- 12}$

$6.25 \times 1 0^{11}$

$6.25 \times 1 0^{13}$

Correct answer is (b) $6.25 \times 1 0^{- 12}$

Q. How many electrons must be removed from a piece of metal to give it a positive charge of 1×10−7C ?

6.25×10−11

6.25×10−12

6.25×1011

6.25×1013